Every thing you need to convert your Glock 21 .45 acp into a .400 corbon shoot 135gr bullets @1400fps. Barsto .400 corbon barrel,RCBS .400 corbon dies and 250-300 rds of .400 corbon brass. $150.00 cash will consider trades for other glock stuff, 9mm,10mm,.357 sig ,40 S&W. Located in se. PDX.